Plastic Expansion Wall Plugs are selected when an assembly calls for fixing steelwork, plant and services to concrete and masonry, where the anchor is set in a drilled hole and its capacity is governed by the base material rather than by the steel. This application guide to the JG/T 139 / ETAG 020 type covers concrete end-uses, the specification checklist, correct installation, and where an alternative fastener performs better. Stocked across roughly 5 mm to 10 mm, they cover general to heavy-duty work.
Typical Applications for Plastic Expansion Wall Plugs
The most common settings where these are specified:
- Fit-out & drylining: fixing to plasterboard, block and hollow wall where there is no solid backing.
- General machine building: fastening covers, brackets, motors and sub-assemblies on production equipment.
- Maintenance & repair (MRO): a stocked size for servicing existing plant where the original fastener spec must be matched.
- Fabrication & metalwork: bench and on-site assembly of steel frames, enclosures and weldments.
- Structural fixing to concrete: base plates, brackets, rails and steelwork bolted to a concrete slab or wall.
How to Specify Plastic Expansion Wall Plugs for Your Application
- Size: Match the nominal size to the mating thread or hole. This product spans 5 mm–10 mm; check the full table below for the exact dimensions of each size.
- Material: Choose the material and finish for the service environment — plated steel for general use, stainless for corrosion resistance.
- Environment: For damp, coastal or chemical exposure prefer A4/316 stainless or a suitable coating; indoors, plated steel or A2 is usually sufficient.
- Standard: This product is supplied to JG/T 139 / ETAG 020. Quoting the standard on your order guarantees interchangeable dimensions between suppliers.
Where Plastic Expansion Wall Plugs Are Not the Right Choice
Match the fastener to the load, environment and whether the joint must be reopened; the wrong class or style is the usual cause of joint failure.
